Welcome to the hardhatengineer.com.
I am Varun Patel.
In this video, you will learn different types of valves that used in piping.
You will learn about • Gate Valve
• Globe Valve • Check Valve
• Plug valve • Ball Valve
• Butterfly Valve • Needle Valve
• Pinch Valve and • Pressure Relief Valve
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What is Valve?
A valve is a device that regulates, controls or directs the flow of a fluid by opening,
closing, or partially obstructing fluid flow.
Basically it controls flow & pressure.
Different types of valves are used to serve these functions.
Let's start with Gate valve
Gate valve is the most common type of valve in any process plant.
It is a linear motion valve used to start or stop fluid flow.
In service, these valves are either in fully open or fully closed position.
Gate valves are used in almost all fluid services such as air, fuel gas, feedwater, steam, lube
oil, hydrocarbon, and all most any services.
Gate valve provides good shutoff.
Globe Valve Globe valve is used to stop, start, and regulate
the fluid flow.
Globe Valves are used in the systems where flow control is required and leak tightness
is also necessary.
Globe valve provides better shut off as compared to gate valve and it is costlier than gate
valve.
Check Valve The check valve prevents backflow in the piping
system.
The pressure of the fluid passing through a pipeline opens the valve, while any reversal
of flow will close the valve.
Plug valve Plug valve is Quarter-turn rotary motion Valve
that uses a tapered or cylindrical plug to stop or start the flow.
The disk is in plug shape, which has a passage to pass the flow.
Plug valve used as on-off stop valves and capable of providing bubble tight shutoff.
Plug valve can be used in vacuum to high-pressure & temperature applications
Ball Valve A Ball valve is a quarter-turn rotary motion
valve that uses a ball-shaped disk to stop or start the flow.
Most ball valves are of the quick-acting type, which requires a 90° turn of the valve handle
to operate the valve.
The ball valve is Smaller and lighter than a gate valve of same size and rating.
Butterfly Valve A Butterfly valve is a quarter-turn rotary
motion valve, that is used to stop, regulate, and start the flow.
Butterfly valve has a short circular body.
Butterfly Valve is suitable for large valve applications due to Compact, lightweight design
that requires considerably less space, as compared to other valves.
Needle Valve Needle valves are similar to a globe valve
in design with the biggest difference is the sharp needle like a disk.
Needle valves are designed to give very accurate control of flow in small diameter piping systems.
They get their name from their sharp-pointed conical disc and matching seat.
Pinch Valve The pinch valve is also known as clamp valve.
It is a linear motion valve.
Used to start, regulate, and stop fluid flow.
It uses a rubber tube, also known as a pinch tube and a pinch mechanism to control the
fluid.
Pinch Valve is ideally suited for the handling of slurries, liquids with large amounts of
suspended solids, and systems that convey solid material pneumatically.
Pressure Relief Valve A pressure Relief valve or pressure safety
valve are used to protect equipment or piping system during an overpressure event or in
the event of vacuum.
This valve releases the pressure or vacuum at pre-defined set pressure.
If you want to learn about more than 18 types of valve in detail, you can buy my course,
how to be an expert in piping valves.
Link is given in the description.
This is all about different types of valves.
Don't forget to subscribe to my channel.
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See you soon goodbye take care.
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